India building 6,000km nuclear-capable missile
An ICBM will be the next logical step. Let's say a Chinese and/or Pakistani SSBNs are known to patrol in certain remote areas of Indian/Pacific/Atlantic Oceans. Then, having ICBMs strike those would disable or take them out. Additionaly, they would enable India to be more self-reliant and independent in her defense & foreign policies.India announced major plans to increase its nuclear capabilities Wednesday, saying it was close to testing a ballistic missile capable of hitting targets up to 6,000 kilometres (3,800 miles) away.
Such a distance would nearly double the military’s current strike range, putting targets even in Europe within reach, and came one day after neighbouring Pakistan tested a nuclear capable cruise missile.
M. Natarajan, who heads the Indian government’s Defence Research and Development Organisation (DRDO), said flight tests of Agni-IV ballistic missiles would begin within months.